PHOC 3

0.24 UTI

0.33

C_N

0.13

C_dens

0.5

C_C3

0.12

C_lit

1.0

C_dup

N_m (P>50%) 33

Core radius and density 2.6 [pc], 0.7 [pc^-2]

C3 classification BB

C_N 0.33 Poorly populated
C_dens 0.13 Very loose
C_C3 0.5 Intermediate quality
C_lit 0.12 Rarely studied
C_dup 1.0 Unique

📥 Members 📊 Colab 🔬 Bayestar19

MOCA 🔍 CDS 🔍 Simbad 🔍 CDS (α, δ) 🔍 Simbad (α, δ)

Overview

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PHOC 3 is a poorly populated, very loose object of intermediate C3 quality. Its parallax locates it at a moderate distance, below the mid-plane, affected by low extinction. It is catalogued as a near-solar metallicity, intermediate-age cluster (see Parameters). It is rarely studied in the literature.

⚠️ Warning: the low UTI value and no obvious signs of duplication (C_dup=1.0) indicate that this is quite probably an asterism, moving group, or artifact, and not a real open cluster.

Relatively close Low extinction Near-solar metallicity Intermediate age

Cavallo et al. (2024)
Gold sample.

Hunt & Reffert (2024)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).

Hunt & Reffert (2023)
Classified as open cluster. CMD classes: 1.00 (50th percentile), true positive (human-assigned).

Data

🔍 Search references for PHOC 3 in: SciX Simbad

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Reference	Year	RA [deg]	DEC [deg]	Plx [mas]	pmRA [mas/yr]	pmDE [mas/yr]	Rv [km/s]
UCC	99999–	115.819	-30.502	0.423	-2.012	2.36	49.178
Hunt & Reffert	2024	115.827	-30.488	0.425	-2.004	2.34	49.211
Cavallo et al.	2024	115.818	-30.489	0.424	–	–	–
Hunt & Reffert	2023	115.827	-30.488	0.425	-2.004	2.34	49.211
Hunt & Reffert	2021	115.825	-30.477	0.404	-2.033	2.35	–

💡 Note: The UCC values are estimated from its identified members.

Reference	Year	Dist [kpc]	Av [mag]	DAv [mag]	Age [Myr]	[Fe/H] [dex]	Mass [Msun]	B_frac	BSS
UCC	99999–	2.14	0.45	0.63	514	0.310	171	–	–
Hunt & Reffert	2024	2.14	0.45	0.63	514	–	171⁽¹⁾	–	–
Cavallo et al.	2024	2.52	0.94	–	363	0.310	–	–	–
Hunt & Reffert	2023	2.14	0.45	0.63	514	–	–	–	–

(N): Indicates that there are N extra values assigned to this parameter in the corresponding reference.

Visualization

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